What if a vacuum was so advanced it could sense the type of floor it s cleaning? BISSELL Surface Sense Pet vacuum can! Its intelligent Surface Sense Technology can detect floor types and automatically adjust the brush roll speed to give you optimal cleaning performance on any floor type. It s also our first vacuum with a Tangle-Free, Multi-Surface Brush Roll which has stiff bristles for cleaning carpet and soft bristles for vacuuming hard floors, so it can pick up everything from fine dust to larger debris across all floor types. Surface Sense Pet vacuum has a One Touch, Easy Empty dirt tank and a SMARTSEAL ALLERGEN SYSTEM that traps fine dust and allergens while you clean.